A wasp stings a caterpillar. The caterpillar is paralyzed. The wasp then lays an egg in the caterpillar, an egg that will later hatch and consume the caterpillar. Here we have something good and something evil. For the caterpillar, to be consumed by the wasp is an evil. For the wasp, to make possible the continuation of its kind is a good. But these of course are a good and an evil of a relative sort. The good is a good for and the evil an evil for. Neither is a good or an evil in its own right. Each is, if you like, what it is only from a certain, partial point of view. Change that point of view, and the quality of the event too must change.
When I think of such events as this, I am tempted to place them beyond good and evil. Yes, in a way we have a good, and in a way we have an evil. But when one simply observes such an event - when, that is, one does not take the point of view of either caterpillar or wasp but simply watches and contemplates - it seems that the event simply is. The caterpillar dies. The wasp grows. This is simply the way the world is, and nothing in it is good simpliciter or evil simpliciter. I attempt to inculcate this attitude in my children, and it is, I think, the attitude of the scientist. The wasp is in no sense evil or corrupt for what it does. Nature is in no sense evil or corrupt because such things happen in it. It just is. The event is beyond good and evil and its occurrence implies no imperfection in the world.
On the second sort of moral theory defined above ("moral relativism" I called it), all events are like the one described. If one raises oneself outside an event (even if this is only possible in imagination), one recognizes that the most one can say about it is that it simply is. It might well involve great harm to some being, and thus if one adopts its point of view, one will say that it is evil. It might involve benefit to some being, and thus from its point of view, it is good. But this is the only sort of good and evil within it. The sole good that it possesses is a good for. The sole evil that it possesses is an evil for. But in itself - or equivalently, from the point of view of a being not part of the event and in no way effected by it - it is neither good nor evil. It is rather beyond them.
On relativism, all moral judgments are judgments from a certain point of view. In particular, it is the view that "x is good" means "x is good for or to y" and that "x is evil" means "x is evil for or to y". Relativism attaches no sense to the predicate "x is good". It thinks such a predicate incomplete.
Moral relativism seems precisely the right sort of view to hold if one limits one's attention to non-human forms of life. If one adopts their point of view, one finds much that is good or evil to them. But this means no more than that much is helpful and harmful to them. But if one lifts oneself outside their point of view and, as it were, takes in the whole of nature (humans perhaps excluded - more on this in a moment) in a glimpse, that good and evil are revealed to be partial; and from that point of view outside, nature as a whole - nature in which we consider not merely this or that creature but all in their myriad of relations - has none of the good or evil we found in the individuals within it. It is beyond all that.